OPPO A31 – Get More with OPPO A31

PC E9A696E9A1B5E5B9BFE5918AE4BD8D 1917 801

AI Triple Camera, Capture Your Moment

6.5” (16.5cm) Waterdrop Screen1| 4230mAh Large Battery2

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A Camera for Every Occasion

12MP Triple Rear Camera3

OPPO A31’s three lenses inspire you to capture images in more ways than ever before. A 12MP main camera lets you focus clearly on the big picture, while a macro lens lets you zoom in on even the tiniest details. Plus, the depth camera helps create more stunning portraits.

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Your Beauty in Focus

Portrait Bokeh

With hardware level Portrait Bokeh effects, bring the subject of your photo quickly into focus with a blurred background effect. Plus, based on the analysis of hundreds of photos and user aesthetic taste trends, five new portrait styles let you play up your style.

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Zoom into the World

Macro Lens

The macro lens lets you capture the world around you in more detail. From morning dew to blooming flowers, OPPO A31 makes it easy to reveal the hidden gems of everyday life.

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Color up Your Life

Dazzle Color Mode

OPPO A31’s pixel-mapping color algorithm helps bring out the color in photos. In Dazzle Color Mode, not only does flowers look more appealing through enhanced colors, but your world in photos are too more colorful than ever.

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Beautiful Selfies

8MP Front AI Beautification Camera

Say hello to more natural, beautiful selfies. OPPO A31’s 8MP Front AI Beautification Camera automatically identifies age and gender to create more customized and natural selfies with more refined and beautiful skin.

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Immersive Viewing Experience

6.5-inch Waterdrop Eye Protection Screen

The newly designed Nano-Waterdrop Notch of OPPO A31 is 31.4% smaller than before. The result is a larger screen that makes playing games and watching videos more immersive than ever. Plus, OPPO A31 filters out harmful blue light to prevent eye fatigue, protecting your vision for all-day enjoyment.


(16.5 cm) 6.5’’

Nano-Waterdrop Screen



Screen-to-Body Ratio

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3D Aesthetic Design

Fantasy White | Mystery Black | Lake Green

OPPO A31 comes in three striking new colors inspired by nature. Lake Green from a vast shola, Mystery Black from a moonless midnight, and Fantasy White from Ru Ware. OPPO A31’s 3D Aesthetic Design will let you shine above the crowd.

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Feel the Difference

Thinner Curved Body

OPPO A31’s 3D ergonomic body was designed for thinner visual appearance. With its one-handed grip, everything about it just feels right.






Aspect Ratio

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More Slots for More Storage

3-Card Slot (Dual Sim + MicroSD for up to 256GB Extra Memory)5

OPPO A31 supports up to 256GB of additional memory into the three-card slot (Dual Sim + MicroSD). Feel free to take more photos, download more videos and save more music. With this much storage, entertainment has no limits.

3-Card Slot

Dual Sim + MicroSD

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All-Day Big Battery

4230mAh Battery

With a big 4230mAh battery, watch videos, play games and listen to music all day long. You can watch HD videos online for up to 14 hours6, or play games for up to 7 hours6 worry-free.

Up to 14 Hours

Video Streaming

Up to 7 Hours

Online Gaming

Up to 111 Hours6

Audio Playback

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Smooth Performance

Octa-Core Processor

Featuring a 2.3GHz Octa-Core Processor, OPPO A31 not only runs smoothly during games and video playback, but also requires lower power consumption.

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Looks as Smart as It Is

ColorOS 6.1

Presenting an all-new UI design, ColorOS 6.1 offers intelligent, smooth navigation for a smoother experience. Based on Android 9.0, the infinite design now includes a Smart Riding Mode7, Smart Assistance, Swipe-Up Gesture Navigation and even OPPO Cloud Service7.

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Smart Riding Mode

Smart Sidebar

Quality Guaranteed

Good Service

From pre-production R&D to after-sale customer service, OPPO will always strive to serve you with the best products and support.


Global Retailers

9 Intelligent Global

Manufacturing Hubs

6 Research


4 R&D


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Higher Quality through Higher Standards

Stress Tested

Every OPPO smartphone undergoes rigorous testing before reaching you to ensure its quality meets not only our standards but also your every expectation.


Earphone Plug-in Tests


Power Button Tests


Volume Button Tests

1. 16.5cm (6.5” ) waterdrop screen of OPPO A31 is the diagonal length of the display when the four rounded corners are taken to be pointed corners (i.e. actual size is marginally smaller).

2. OPPO A31 adopts a triple rear camera consisting of a 12MP main camera, 2MP macro lens, and 2MP depth camera. The 12MP main camera has an actual output of 12.58MP and produces 4096×3072 resolution images.

3. OPPO A31’s thickness of 8.3mm and weight of 180g are approximate values, taken from OPPO internal tests. Actual product may vary.

4. 3-Card Slot are available only for specific regions and specific versions. Please refer to local specifications. A MicroSD card needs to be purchased separately. 

5. 4230mAh is the typical value of battery capacity. The minimum capacity is 4100mAh.

6. OPPO A31 supports 14 hours of online video streaming, 7 hours of online gaming, and 111 hours of play time for locally stored music.

6a. Online video streaming duration testing was performed with a starting charge of 100% and using a 4G mobile data connection, with the phone’s audio volume adjusted to 72db, the phone’s brightness adjusted to 135lx, and while streaming a 1080P video. Actual playback time may vary under different conditions.

6b. Online gaming duration testing was performed with a starting charge of 100% and using a 4G mobile data connection, with the phone’s audio volume adjusted to 72db, the phone’s brightness adjusted to 135lx, and while running Arena of Valor. Actual usage time may vary under different conditions.

6c. Local music duration testing was performed with a starting charge of 100% while in airplane mode and using wired earphones with the volume adjusted to the maximum setting. Actual playback time may vary under different conditions.

7. Riding Mode and OPPO Cloud Service are available only for specific regions. Please refer to local specifications.

8. Product pictures are for reference only. Please refer to the actual product for actual specifications. Certain product specifications and descriptions may change due to reasons like changes in suppliers. The data in the page came from OPPO designed technical parameters, and test data from the laboratories and from suppliers. In actual circumstances, the data will differ slightly, depending on the test software version, specific testing environment, and specific version.